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Individual Calculations September 2022 |
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| Zhao, Erick Total change: -46.60 | |   |
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| 12th Annual Barber National Tournament of Middle School State Champions | Rancho Mirage, California | USA | 2022-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 2290 | 4.00 | 5 | -0.23 | 40 | -9.20 | |
|  Willy, Stephen | | | 1848 | USA | 1.00 | 1 | 0.06 | 40 | 2.40 | |  Slate, Kent | | | 1758 | USA | 1.00 | 1 | 0.03 | 40 | 1.20 | | | Chiang, Jacob | | | 1890 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Nandhakumar, Vaseegaran | | | 1909 | USA | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Ngo, Bach | f | | 2298 | USA | 0.50 | 1 | 0.01 | 40 | 0.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | NOTE: K factor changed | | 9th Annual Washington International - Championship | Rockville, Maryland | USA | 2022-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2302 | 3.50 | 8 | -1.87 | 20 | -37.40 | |
| | Guha, Eshan | | | 2042 | USA | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Altman, Joshua A | c | | 2156 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Lee, Justin | | | 2102 | USA | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Girsh, Daniel | | | 2118 | USA | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Eckert, Doug D | f | | 2170 | USA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Ouellet, Maili-Jade | | wg | 2192 | CAN | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Narayanan, Samrug | f | | 2356 | USA | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Zong, Davis | c | | 2231 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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